Parametric analysis of ultrasound backscatter signals for monitoring cancer cell structural changes during cancer treatment

Auteurs-es

  • Harshitha Nallapareddy Dept. of Elec. and Comp. Engg., Ryerson University, Toronto, Ont., Canada
  • Sridhar Krishnan Dept. of Elec. and Comp. Engg., Ryerson University, Toronto, Ont., Canada
  • Michael Kolios Dept. of Elec. and Comp. Engg., Ryerson University, Toronto, Ont., Canada

Mots-clés :

Cell death, Classification (of information), Electromagnetic wave backscattering, Error analysis, Reflection, Signal analysis, Tumors, Biomedical signals, Cancer therapy, Non-invasive monitoring, Parametric analysis, Signal classification

Résumé

Les ultrasons à haute fréquence backscattereddes signaux (20 - 60 mégahertz) de normal et les granules apoptotic de cellules diffèrent dans leur intensité de rétrodiffusion, et l’analyse de ces signaux pourrait aider à la surveillance non envahissante de la thérapie de cancer. Dans ce travail, les coefficients de réflexion du filtre d’erreurs de prévision de trellis sont employés comme le dispositif a placé pour la classification paramétrique d’analyse et de signal. Les ultrasons (US) backscattered des combinaisons composées par bases de données de signal des cellules (normales) traitées (apoptotic) et non traitées mélangées dans différentes proportions. Un système commercial de formation image d’ultrasons de 40 mégahertz a été employé. Une exactitude de classification de 97-100% pour les signaux normaux et apoptotic ont été obtenues avec un ordre modèle 15. Les résultats positifs établissent que le coefficient de réflexion est un outil potentiel pour analyser les signaux biomédicaux tels que les ultrasons backscattered des signaux.

Fichiers supplémentaires

Publié-e

2007-06-01

Comment citer

1.
Nallapareddy H, Krishnan S, Kolios M. Parametric analysis of ultrasound backscatter signals for monitoring cancer cell structural changes during cancer treatment. Canadian Acoustics [Internet]. 1 juin 2007 [cité 15 mai 2026];35(2):47-54. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1877

Numéro

Vol. 35 No. 2 (2007)

Rubrique

Articles techniques

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